1 # Sample dhcpcd hook for ypbind 2 # This script is only suitable for the Linux version. 3 4 : ${ypbind_restart_cmd:=service_command ypbind restart} 5 : ${ypbind_stop_cmd:=service_condcommand ypbind stop} 6 ypbind_dir="$state_dir/ypbind" 7 8 best_domain() 9 { 10 local i= 11 12 for i in $interfaces; do 13 if [ -e "$ypbind_dir/$i" ]; then 14 cat "$ypbind_dir/$i" 15 fi 16 done 17 return 1 18 } 19 20 make_yp_binding() 21 { 22 [ -d "$ypbind_dir" ] || mkdir -p "$ypbind_dir" 23 echo "$new_nis_domain" >"$ypbind_dir/$interface" 24 local nd="$(best_domain)" 25 26 local cf=/var/yp/binding/"$new_nis_domain".ypservers 27 if [ -n "$new_nis_servers" ]; then 28 local ncf="$cf.$interface" x= 29 rm -f "$ncf" 30 for x in $new_nis_servers; do 31 echo "$x" >>"$ncf" 32 done 33 change_file "$cf" "$ncf" 34 else 35 # Because this is not an if .. fi then we can use $? below 36 [ -e "$cf" ] && rm "$cf" 37 fi 38 39 if [ $? = 0 -o "$nd" != "$(domainname)" ]; then 40 domainname "$nd" 41 if [ -n "$ypbind_restart_cmd" ]; then 42 eval $ypbind_restart_cmd 43 fi 44 fi 45 } 46 47 restore_yp_binding() 48 { 49 rm -f "$ypbind_dir/$interface" 50 local nd="$(best_domain)" 51 # We need to stop ypbind if there is no best domain 52 # otherwise it will just stall as we cannot set domainname 53 # to blank :/ 54 if [ -z "$nd" ]; then 55 if [ -n "$ypbind_stop_cmd" ]; then 56 eval $ypbind_stop_cmd 57 fi 58 elif [ "$nd" != "$(domainname)" ]; then 59 domainname "$nd" 60 if [ -n "$ypbind_restart_cmd" ]; then 61 eval $ypbind_restart_cmd 62 fi 63 fi 64 } 65 66 if [ "$reason" = PREINIT ]; then 67 rm -f "$ypbind_dir/$interface" 68 elif $if_up || $if_down; then 69 if [ -n "$new_nis_domain" ]; then 70 make_yp_binding 71 elif [ -n "$old_nis_domain" ]; then 72 restore_yp_binding 73 fi 74 fi 75
